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T O P I C    R E V I E W
jpw00blue Posted - 03/29/2012 : 20:12:48
Can this be -b and m as well as b and -m ?

Give what each equation must be to eliminate the term containing x.

mx - ny = z

bx - ny = r

AND

Solve for x and y.

ax+by = r
ax+ cy = s

Can it be both x= bs-cr/a(b-c) or x= cr-bx/ac-ab
y= s-r/c-b or y= r-s/b-c
1   L A T E S T    R E P L I E S    (Newest First)
royhaas Posted - 03/30/2012 : 07:56:11
Multiply numerator and denominator by -1 so that you see that both forms are equivalent.

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